Jump to content
Sign in to follow this  
Ben H

Hydrostatic Pressure Crack?

Recommended Posts

Whatcha think?

Basement wall, looked bowed out a bit, but so much stuff in the way I couldn't sight down it. No water signs at all.

And, have you guys ever seen insulation used as sill seal?

Click to Enlarge
tn_2011310162359_DSCN3810.jpg

30.05 KB

Click to Enlarge
tn_2011310162617_DSCN3811.jpg

30.29 KB

Share this post


Link to post
Share on other sites

How old is it? That looks like slip formed concrete, which would be much older than the framing in that pic.

There was a fiberglass sill seal still in use in the late 1980's, but given the ragged edge at the top of that stem wall are you sure it wasn't stuffed in later?

Share this post


Link to post
Share on other sites

Late 80's construction. Thats what I thought too Darren, it's awful high up on the wall. I know the establish shot sucks, but the stepped foundation wall was about 6ft or so at this point.

If not pressure, what would cause the bow/crack in a wall like this? It was big, close to 1/4 at the widest point.

Share this post


Link to post
Share on other sites

Yes, just below grade, about a foot. I thought that too, perhaps a unruly skid steel driver during construction.

I'm just not sure. Either way it's a punt I think. I sure as hell don't wanna miss judge this one.

Share this post


Link to post
Share on other sites

Yes, that's a weird one. Given the size, I'd be wanting some more eyes on it than just mine.

The insulation is just what Raymond said; very popular in the early-mid 80's. It came in rolls sold as "sill seal".

Share this post


Link to post
Share on other sites

May be seeing something that's not there.......but from the sill, down to the first slip-form joint, the concrete texture appears different. Could be a cold joint or later repair?

Share this post


Link to post
Share on other sites

It really looks like an impact.

I sure as hell don't wanna miss judge this one.
Who is this Miss Judge?

Appears my "s" key got stuck, and the space bar kicked in at the same time. Strange...[:-paperba

Share this post


Link to post
Share on other sites

The more I think about it, impact seems the most logical thing.

I just don't see a crack at grade being caused by water heaving on the foundation.

I suppose it could, but I've never seen it.

Final, I'd have to eyeball the thing all the way down the line, even if I had to move stuff. It's the only way to know anything for sure.

Share this post


Link to post
Share on other sites

How deep does 'Jack" go there in winter (Mr. Frost)? Horizontal cracks are not good ju-ju... could be Jack Frost.. was the grade relatively flat or negative adjacent to the foundation.. ? Any pics demonstrating the 'bulge'? Hard to tell from your photo..

Share this post


Link to post
Share on other sites

When I say this basement was packed, I mean PACKED. Only a small path to the door next to the crack. If that door had not beer there, it would have been covered up to.

I couldn't get a good look at the other side because of the very low deck mounted off the back of the house.

The last deck I build with permits (2008) the AHJ required 24" footer, but I think the frost line is 18". I'm sure Bain or Erby will correct me if not.....it's still early right now. [;)]

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...